THE PUNISHER versus THE X-MEN
What If... Wolverine had become the Lord of Vampires? (Marvel comics)
Where: What if...? #24 When: April 1991
Why: Roy Thomas & RJM Lofficier How: Tom Morgan
The story so far...
When the X-Men battled the menace of Count Dracula, it was only the strength of character of Ororo Monroe, Storm, who had been possessed by the fiend, that saved the lives of the mutant team. But what if Storm had remained under Dracula's spell?
In a world where just that has happened, Dracula finds more than he bargained for when he returns to raise the defeated X-Men from the dead.
Wolverine proves too strong a will for Dracula contain, and ultimately slays him, making the X-Man the new lord of vampires. Having mastered the powers of the vampire, Wolverine and his vampires go on the rampage. They declare into their number heroes and villains alike, whilst destroying anyone who is deemed a potential threat -- including Dr. Strange, who falls at the hands of the Juggernaut.
Though dead, Strange remains in his astral, and recruits one of the last 'super' humans alive to his cause: Frank Castle -- The Punisher.
Full Article: http://secretearths.blogspot.com/2007/03/punisher-versus-x-men-what-if.html